CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash flows from operating activities
Net income	$ 1,617,271	$ 1,901,608
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation and amortization	1,214,344	1,221,938
Unrealized loss (gain) on marketable equity securities	889,885	(791,189)
Unrealized (gain) loss on interest rate cap premium	(102,393)	4
Amortization of loan procurement costs	105,027	155,176
Stock-based compensation	131,112	140,274
Gain on PPP loan forgiveness	(307,210)
Changes in operating assets and liabilities:
Accounts receivable	(42,060)	321
Prepaid expenses and other assets	(12,300)	(158,660)
Accounts payable and accrued expenses	317,330	64,324
Net cash provided by operating activities	3,811,006	2,533,796
Cash flows from investing activities
Improvements and equipment additions	(81,904)	(243,626)
Net cash used in investing activities	(81,904)	(243,626)
Cash flows from financing activities
Issuance of common stock, net of expenses	1,982,028	6,184,684
Proceeds received on PPP loan forgiveness	307,210
Line of credit repayment, net		(5,144,000)
Issuance costs on renewal of revolving line of credit		(231,926)
Principal payments on note payable	(398,361)	(382,035)
Dividends paid	(2,210,072)	(1,913,512)
Net cash used in financing activities	(319,195)	(1,486,789)
Net increase in cash, cash equivalents, and restricted cash	3,409,907	803,381
Cash, cash equivalents, and restricted cash, beginning of period	3,063,699	1,955,443
Cash, cash equivalents, and restricted cash, end of period	6,473,606	2,758,824
Supplemental cash flow and noncash information
Cash paid for interest	569,539	688,695
Supplemental disclosure of noncash activities:
Dividends payable	$ 3,043	$ 2,079